GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Remote Keyless Entry System Check performed?

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Go to Step 2

Go to Remote Keyless Entry System Check

2

Was the BCM Diagnostic System Check performed?

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Go to Step 3

Go to Diagnostic System Check - Body Control System in Body Control System

3

  1. Remove the key from the ignition key cylinder lock.
  2. Close all the vehicle doors.
  3. Press the LOCK button once on the keyless entry transmitter while observing the door locks.
  4. Press the UNLOCK button twice on the keyless entry transmitter while observing the door locks.

Does the keyless entry system operate the door locks?

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Go to Content Theft Deterrent (CTD) System Check in Theft Deterrent

Go to Remote Keyless Entry System Check